Paul writes: "I'm making some guitar pickups to sell that have a separate output for each string. These can be wired to 6 jacks, or to pan pots to a pair of jacks, or to a 7 pin out to a breakout box that has whatever configuration you want, etc. I installed one in an 80s Korean Squier to test it out, with pans to two jacks for stereo. Paul is the man who teaches NYC schoolkids to build guitars and oscillators and jam. Six-way guitar pickups aren't new, of course. Aside from all those midi hexaphonic pickups, Eddie Van Halen had a bonkers Kramer with pannable outputs. If you want one of Paul's pickups, they're $110 from paul at ubertar dot com.
UPDATE: A couple of mp3 demos, best heard on headphones: Hexaphonic 1 Hexaphonic 2.